[shameless plug] I built http://lightnote.co for exactly this. Starting from basic sound waves, it teaches music theory while skipping all of the technical notation. It definitely doesn't go as deep as this post, but I don't think that's essential to getting started. - Source: Hacker News / almost 3 years ago

My favorite course is https://lightnote.co due to how the information is structured (it's not free though). Source: about 3 years ago

A few apps that are a joy to use: https://ia.net/writer for writing. https://usecontrast.com/ for checking contrast. https://sipapp.io/ for picking colors. https://nova.app/ for editing code. https://cleanshot.com/ for screenshots. https://getpixelsnap.com/ for measuring elements on screen. https://netnewswire.com/ for reading things via RSS. https://panic.com/transmit/ for file transfers. https://usefathom.com/... - Source: Hacker News / 6 months ago

I used to use Sip http://sipapp.io/ until it pegged my cpu @ 100% a couple of times so I uninstalled it lol. Source: about 1 year ago

There are tons and tons of small utilities that are great for developers such as Sip, TextSniper, ProxyMan, RapidAPI etc. Source: over 1 year ago

Sip https://sipapp.io/ --> System Color Picker https://apps.apple.com/us/app/system-color-picker/id1545870783?mt=12. Source: over 1 year ago

Hyperkey+I to access my color picker (I use Sip). Source: over 1 year ago